Air-compressor.



mhvsvs. PATENTBD PBB.,11, 190s.Y

\ L. c. .'rRENT.

AIR' COMPRESSOR.

APPLICATION FILED MAR. 31. l1906'.

nesses.

i UNITED sTaTEs :PATENT oEEioE.

LAMARTINE G. TRENI, OF SAN FRANCISCO, CALIFORNIA.

' AIR-COMPRESSOR.

Specification of Letters Patent; -V A Application filed March 3l. 1906.Serial No. 309.051.

Patented Feb. `1 1, 190s.

T o all whom it may concern:

Be it known that I, LAMARTINE C; TRENT,

a citizen of the United States, residing at the c1ty;and count-y'ofSanlFrancisco, State of' California, have invented certain new anduseful Improvements in Air-Compressors;

.and I do hereby declare the following to be a within a pressurecylinder through the med'iurn. .of 'a centrifugally propelled body ofliquidi/:which liquid acts as the medium for forcing or expelling airunder pressure from Within a rotating receiver into an air .pressurecylinder, the rotating receiver being provided wit'li. a series ofycontrolled outlets for theescape of the air and liquid from within thesaid receiver in the form of 4jet streams.

`'Io com rehend'- the invention reference should be adto theaccompanying sheet of drawings, whereini f Figure 1 is a verticalsectional view of the pressure 'cylinder and of the .air receiverrotatably mounted therein, the hollow shaft for imparting rotation tothe receiver being partly broken away to disclose the valve seatedtherein for preventing the compressed air escaping from within thepressure cylinder into the hollow shaft Fig. 2 is a cross sectional topplan "'iew taken on line :r-x Fig. 1 of the drawings; and Fig. 3 is anenlarged detail sectional vie-wof a portion of the receiver and one ofits outlet nozzles.

In the drawings the numeral 1 designates .fr the cylinder within whichthe air is compressed, which cylinder shall hereinafter-be termed apressure cylinder. The pressure` cylinder is provided with a pressuregage 2, and a safety valve 3.

Through a stuffing gland 4 secured to the pressure cylinder 1, extends ahollow rota table shaft 5, to which is secured the air receiver 6, intothe interior of which receiver extendsthe open lower end of the shaft,5.

The receiver 6 in shape is substantially thatofian inverted cone, whichforms` a gradually contracted upwardly extending annular passage 7 forflow of the air and water to be discharged therefrom In theiipper edgeof the receiver 6 is formed a series of outlets 9, `withii'i'each ofwhich is f fitted an outlet nozzle 10, said nozzles being y eachprovided `with a controlling valve 11,

'for regulating the jet to be discl'iarged there-- Through the bottom ofthe receiver 6 eX- tends a series of short curved. supply pipes 12,which pipes discharge into the interior chamber of the said receiver.

From the bottom of the receiver extends a bearing stud 13, which restsand works within the step bearing 11i. 'i

Within the lower portion of the hollow shaft 5 is formed a valveuchamber 15, the seat 15 of which is controlled by a vertically movableball valve 16, which is loosely held within the valve chamber 15 by itsstem 17.

Rotation is imparted to the hollow shaft 5 b vany suitable means,preferably by a belt 17', working over a pulley 172,-secured to theupper projecting'endA portion yof the said shaft.

Into the hollow shaft 5 extends an air supwhich supplies a smallquantity ofwater to' said pipe.

In order that the water entering the chamber 19through the supply pipes12, may be confined and directed toward the outer wall' of the receiver(i, there issecured within the said chamber 19 a defiecting disk 20,which forms a contracted annular passage 20 for the iniiowing water.

Inoperation, the pressure tank or cylinder 1 is supplied with water soas to partially,

cover the receiver 6. Power is then applied for rotating the shaft 5 ata high speed for rapidly revolving the receiver 6 within the pressuretank or cylinder 1. During the rotary movement of the receiver, water isforced therein through the short curved supply pipes 12, the waterenteringV therein impinging against the under surface of the deilectingdisk 20, 'and being deflected toward the side wall of the chamber 19. Atthe saine time, -the air and water entering i through the hollow shaft5, is discharged into the said chamber 19, which, with the waterdeflected toward the side wall of the chainber, is by centrifugal force,thrown upward toward the upper edge of the receiver. The air beingllighter than the water will move in advance thereof, the water movingupward at a high andincreasing velocity within the gradually contractingpassage 7, will act as E the medium for forcing the air under pressurethrough the outlet nozzles into the pressure tank or cylinder 1, withinwhich the air is gradually compressed by the jet streams issuing fromthe nozzles 10. The water con-y tained Within the discharged jetsintermingles with the body of Water therein, While the liberated air isheld above the body of said Water. .The air t'hus forcibly ejected intothe pressure tank or cylinder 1, is compressed therein by the jets-continually forced from Withinv the rotating receiver through the'outlet nozzles. The vacuum created Within the receiver 6 during theoutflow of fluid therefrom, causes the air to be compressed to be drawntherein, While the regulated by the controlling valve 11, of the`nozzles 10.

' When the apparatus is at rest, the compressed air is prevented fromescaping back through the pipe 5, by means of the vertically movableball `val e 16, which valve isv raised by the pressure of the airthereagainst, andforced iirmly against its .seat 15', thus closing thesame against the escape of air.'

When the air Within the tank or cylinder 1 has reached a given pressure,as indicated .by the'gage 2, an excess of lieved by the safety valve 3.

vInasmuch as a small quantity of Water is admitted into the receiverwith 'the air, it is apparent that such supplied Water will, in time,raise the Water Within the pressure tank or cylinder'1, above a givenlevel. To provide for this, a valve controlled outlet pipe 21 is provided. -When the Water "is raised within the pressure tank or cylinder1, above a given level, the valve 22 is opened and the Water permittedto escape through the pipe 21, until the proper amount of Water has beenWithdrawn from within the pressure tank or cylinder.

The Water as deliveredlthrough the hollow shaft is thrown outwardly. bycentrifugal force, the moment it enters the receiver. This body of Waterconfines the air entering therewith towards the upper surface of thereceiver, and forces the same to m'ove up- Wardly beyond the peripheryof the deflecting plate or disk 20, where it is met by the moving bodyof water discharged under pressure from Within the annular passage 2,0',and by such moving body forced.u p

Wardly Within the contracted passage-Way Y pressure is re` Within saidAtank or cylinder and raises the pressure thereofin accordance with thegradually increased pressure of the air compressed Within the said tankor cylinder. i The result is that 'the Water taken int-o the receiverduring the rotary movement thereof, through the supply pipes 12, entersunder a pressure proportionate to the pressure 'of the air With- Ain thetank or cylinder.

ln order that this pressure of the inflowing Water may be conserved, isthe main reason for the introduction of the deecting plate or disk 20,Within the receiver 6, which deflecting plate or disk forms, as beforestated, a contracted annular passage 20 within which the incwing Watermoves1 underv pressure. lf the inllowing water was admitted directlyinto the enlarged interior chamber of' the receiver, at

ythe center thereof, the result would be a loss of its pressure; hencethe reason for confine ing the same within a contracted annularv passageWay, until its point of discharge has been reached. v

The water admitted through the supply pipe 1S is mainly for the purposeof maintaining cool the body of water Within the pressure tank orcylinder. lf fresh water-'is not admitted into thev apparatus, theinitial body of Water contained within the pressure chamber or cylinderwould quickly become heated, under compression, resulting in a loss ofefficiency. To obviate this, cool water is admitted into the receiverand discharged" therefrom into the pressure tank or cylin er, whichmaintains the body ol' water contained Within said tank or cylinder atan even teinperature.

Having described the invention what is claimed as new and desired to besecured by Letters' Patent isj 1. An apparatus for the describedpurpose, the same comprising a pressure tank or cyl4- inder, a receiverrotatably mounted therein, an inlet in said receiver for the admissionof Water, an air supply for admitting airto the interior of the receiveratthe point of the 'admission of the Water, outlets in the receiver forthe escape of air under pressure, an auxiliary Water inlet for saidreceiver connecting with the interior of said tank or cylinder an meansfor imparting rotation tothe said-receiver for centrifugally forcing airand waterfor the described purpose, the same comprising a pressure tankor cy=l' inder, a receiver rotatably mounted therein;

linlets for admitting air and Water into) the re-f ceiver, outlets forthe escape of air and water or cylinder,v of a receiver rotatablymountedl therein, into which receiver tima-nd Water are received anddischarged directly therefrom under pressure into the pressure tanh'orcylinder, said receiver comprising oppositely` disposed connectedupwardly' inclined 4annuler-Walls7 and an intermediate annular delectordisk constitutingl in connection with' one of said Walls arestrictedpassage and means for impartingrotation tothe receiver for centrifugallyexpelling the air andu'eter therefxi'm.- Y

4. Thecorn-bination With the pressure tank or cylinder, of a receiverrotatably mounted therein and comprising oppositely disposed connectedannularwalls, devices for supplyk der pressure.

`ing air and Water to the interior of the receiver, a dflectin disk .orplate With-in the receiver, 4inlets be 0W saidy disk or plate foradmitting a compressing body of bliquid into the receiver, outlets inthe receiver for the escape of .air and Water from Within the receiverunder pressureVand. means forfimparting rotation to the receiver( for.centrifugally expelling air and Water therefrom un- 5. In an aircompressor, the combination with a pressure tank or cylinder, of anannular. cup shaped receiver rotatably .mounted therein for'receivingair and Water and expelling .the same therefrom under pressure.

into, the said pressure tank or cylinder. I

The means for compressing air within. a pressureV tank or cylinder, thesame consisting of a receiver which receives cir and liquid and expelsthe'same therefrom `under pressure into the pressure 'tank or cylinder,a' horizental deflector in said receiver for the water, and devices forrotating the receiver at a high speed to expel the air and Watertheretrom centrifugz'illy.

7. An air compressor comprising a pressure tank or cylinder, a rotatableVreceiver for discharging air and Water into the said tank or cylinderunder pressure, said receiver comprising l'oppositely disposedconnected' Walls, and a 'diaphragm therebetween, inlets in said receiverfor the admission of air and escape of air and Water therefrom underpressure, and means for rotating the receiver :Waterto the interiorthereof, outlets for the .l v

at a high speed for expelling the air and wa-

